Energy Diagram Practice

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
Use this energy diagram to answer these questions.
nrgdiagram2.gif
1. The enthalpy of the reactants of the reaction is about kilojoules.

2. The enthalpy of the products of the reaction is about kilojoules.

3. The activation energy of the reaction is about kilojoules.

4. The heat of reaction (ΔH) of the reaction is about kilojoules.

5. The forward reaction is (endothermic or exothermic).

6. Addition of a catalyst would lower the .

7. The enthalpy of the reactants is (less/greater) than the enthalpy of the products.

8. (True/False) Addition of a catalyst will change the value for ΔH

9. (True/False) Addition of a catalyst will change the value for the enthalpy of the reactants

10. (True/False) Addition of a catalyst will change the value for the enthalpy of the products